Arnov Sharma has put together a beautiful all-in-one Raspberry Pi box that's portable and made for gaming on the go.

Inside you’ve got the aforementioned Raspberry Pi 4 (with a Noctua fan to keep it cool), an external hard drive, a HDMI to VGA converter with scanline generator to drive the 4:3 ratio Eizo Flex ...

The main model of Pi used in this rig is a Raspberry Pi 4 which is supported by a couple ... There are also other gaming-related operating systems like RetroPie that would work just as well.